Question

我正在制作一个消防应用程序，允许我从列表视图中选择不同的音色，如果愿意，可以将它们添加到队列中，然后按下按下播放按钮时按照选择的顺序播放它们。我已经看过有关使用媒体播放器阵列的一些内容，但不确定如何将声音文件或参考ID添加到数组中，以便可以从索引0中的第一个选定声音开始播放它们到最后一个最后一个索引。任何帮助表示赞赏。

Answer 1

这样的东西？

//
import android.media.AudioManager;
import android.media.SoundPool;
import android.app.Activity;
//
import java.util.HashMap;
//
import us.kristjansson.android.R;

public class CxMediaPlayer
{
private SoundPool mShortPlayer= null;
private HashMap mSounds = new HashMap();

// Constructor
public CxMediaPlayer( Activity pContext )
{
// setup Soundpool
this.mShortPlayer = new SoundPool(4, AudioManager.STREAM_MUSIC, 0);

// 0-9 Buttons
mSounds.put( R.raw.button_1, this.mShortPlayer.load(pContext, R.raw.button_1, 1) );
mSounds.put( R.raw.button_2, this.mShortPlayer.load(pContext, R.raw.button_2, 1) );
mSounds.put( R.raw.button_3, this.mShortPlayer.load(pContext, R.raw.button_3, 1) );
mSounds.put( R.raw.button_4, this.mShortPlayer.load(pContext, R.raw.button_4, 1) );
mSounds.put( R.raw.button_5, this.mShortPlayer.load(pContext, R.raw.button_5, 1) );
mSounds.put( R.raw.button_6, this.mShortPlayer.load(pContext, R.raw.button_6, 1) );
mSounds.put( R.raw.button_7, this.mShortPlayer.load(pContext, R.raw.button_7, 1) );

// Others
mSounds.put( R.raw.delete_5, this.mShortPlayer.load(pContext, R.raw.correct_answer, 1) );
mSounds.put( R.raw.delete_5, this.mShortPlayer.load(pContext, R.raw.wrong_answer, 1) );
}

// Plays the passed preloaded resource
public void playShortResource( int piResource )
{
int iSoundId = mSounds.get( piResource );
this.mShortPlayer.play( iSoundId, 0.99f, 0.99f, 0, 0, 1 );
}

// Cleanup
public void Release()
{
// Cleanup
this.mShortPlayer.release();
this.mShortPlayer = null;
}
}

然后，您在Activity中需要的只是启动播放器类并调用当你需要播放声音时播放快照资源。您的资源应该在 res / raw目录。

// The media player – OnCreate
mxMediaPlayer = new CxMediaPlayer( this );
// Play the desired sound – OnClick
mxMediaPlayer.playShortResource(  R.raw.button_1 );
// Make sure to release resources when done – OnDestroy
mxMediaPlayer.Release();

并在您的情况下将它们添加到数组，然后循环播放

toPlay.Add( R.raw.button_1 ) 
toPlay.Add( R.raw.button_3 ) 
toPlay.Add( R.raw.button_7 ); 

Foreach( item in toPlay list ) 
  mxMediaPlayer.playShortResource( item )

Android按顺序播放声音

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